:root {
  --primary-color: #2d6a4f;
  --text-color: #1a1a1a;
  --paper: #faf9f5;
  --muted: #59625b;
  --rule: #d7ddd5;
  --tint: #edf2ec;
  --accent: #8b6f47;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 2rem; }
body { margin: 0; background: var(--paper); color: var(--text-color); font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", Meiryo, sans-serif; line-height: 1.85; }
a { color: var(--primary-color); text-underline-offset: .25em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--primary-color); outline-offset: 5px; }
.skip-link { position: absolute; top: -100px; left: 1rem; background: white; padding: .7rem 1rem; z-index: 10; }
.skip-link:focus { top: 1rem; }
.site-header { border-bottom: 1px solid var(--rule); }
.header-inner { max-width: 1180px; margin: auto; padding: 1.25rem 2rem; display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; }
.brand { text-decoration: none; font-weight: 600; letter-spacing: .05em; }
.brand small { display: block; color: var(--muted); font-size: .68rem; font-weight: 400; letter-spacing: .14em; }
.site-nav { display: flex; gap: 1.5rem; align-items: center; font-size: .9rem; }
.site-nav a { text-decoration: none; padding: .35rem 0; }
.site-nav [aria-current] { border-bottom: 2px solid var(--primary-color); }
.shell { max-width: 1180px; padding: 0 2rem; margin: auto; }
.breadcrumbs { padding: 1.5rem 0; font-size: .8rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: .65rem; }
.breadcrumbs a { text-decoration: none; }
.eyebrow { margin: 0 0 1rem; color: var(--primary-color); font-size: .8rem; font-weight: 600; letter-spacing: .13em; }
.intro { padding: 3rem 0 4rem; max-width: 880px; }
h1, h2, h3, p { margin-top: 0; }
.intro h1, .article-header h1 { font-family: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif; font-weight: 500; letter-spacing: .03em; line-height: 1.55; }
.intro h1 { font-size: clamp(2.1rem, 4.4vw, 3.6rem); margin-bottom: 1.5rem; }
.intro p:last-child { margin: 0; max-width: 640px; color: var(--muted); }
.column-list { list-style: none; padding: 0; margin: 0 0 4rem; border-top: 1px solid var(--rule); }
.column-entry { display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--rule); }
.column-date { font-variant-numeric: tabular-nums; color: var(--muted); }
.column-entry a { text-decoration: none; line-height: 1.85; }
.column-entry a:hover { text-decoration: underline; }
.column-meta { display: flex; flex-wrap: wrap; gap: .9rem; color: var(--muted); font-size: .78rem; margin-bottom: .8rem; }
.column-meta .category { color: var(--primary-color); font-weight: 600; }
.read-link { font-size: .88rem; font-weight: 600; }
.article-header { max-width: 880px; padding: 2.5rem 0 2.5rem; }
.article-header h1 { font-size: clamp(1.9rem, 3.4vw, 3rem); margin-bottom: 1.6rem; }
.article-header .lede { font-size: 1.07rem; line-height: 1.95; max-width: 750px; color: var(--muted); }
.article-header .column-meta { margin-bottom: 0; }
.article-body { max-width: 740px; margin: 0 auto; padding: 1.5rem 0 2rem; font-size: 1.05rem; line-height: 2.1; }
.article-body h2 { margin: 3rem 0 1.2rem; padding-top: .5rem; font-size: 1.35rem; line-height: 1.7; font-weight: 600; }
.article-body h2:first-child { margin-top: .5rem; }
.article-body p { margin-bottom: 1.5rem; }
.article-body strong { font-weight: 600; }
.article-body .takeaway { border-left: 3px solid var(--primary-color); padding: 1.3rem 1.5rem; background: var(--tint); margin: 2rem 0; }
.sources { max-width: 740px; margin: 0 auto 3rem; padding-top: 1.5rem; border-top: 1px solid var(--rule); font-size: .85rem; }
.sources h2 { font-size: .9rem; font-weight: 600; }
.sources ul { padding-left: 1.2rem; }
.sources li { margin-bottom: .7rem; overflow-wrap: anywhere; }
.next-reading { background: var(--tint); border-top: 1px solid var(--rule); padding: 2.5rem; margin-bottom: 4rem; }
.next-reading h2 { font-weight: 500; font-size: 1.6rem; line-height: 1.65; margin-bottom: 1rem; }
.next-reading p { max-width: 760px; color: var(--muted); }
.cta-link { display: inline-flex; align-items: center; justify-content: center; gap: 1.5rem; min-height: 48px; padding: .65rem 1.35rem; background: var(--primary-color); color: white; text-decoration: none; font-size: .9rem; }
.cta-link:hover { background: #23553e; }
.cta-link:focus-visible { outline-offset: 5px; }
.secondary-link { display: block; margin-top: 1.2rem; font-size: .85rem; }
.site-footer { border-top: 1px solid var(--rule); background: white; padding: 2rem 0; font-size: .8rem; color: var(--muted); }
.footer-inner { max-width: 1180px; padding: 0 2rem; margin: auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-contact { display: block; font-size: .82rem; margin-bottom: .7rem; }
@media (max-width: 640px) {
  .shell { padding: 0 1.25rem; }
  .header-inner { padding: 1rem 1.25rem; flex-wrap: wrap; }
  .site-nav { width: 100%; gap: 1.5rem; font-size: .85rem; }
  .site-nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .intro { padding: 1.75rem 0 2.5rem; }
      .column-entry { grid-template-columns: 1fr; gap: .2rem; padding: 1rem 0; }
  .column-date { font-size: .85rem; }
  .article-header { padding: 1.5rem 0 2rem; }
  .article-body { font-size: 1rem; line-height: 2; padding-top: 0; }
  .article-body h2 { margin-top: 2.5rem; font-size: 1.2rem; }
  .next-reading { padding: 1.5rem; margin-bottom: 2.5rem; }
  .next-reading h2 { font-size: 1.3rem; }
  .cta-link { width: 100%; }
  .footer-inner { padding: 0 1.25rem; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; } }
.translation-body { max-width: 740px; margin: 0 auto; padding: 1.5rem 0 2rem; font-size: 1.05rem; line-height: 2.1; }
.translation-body h2, .translation-body h3, .translation-body h4 { margin-top: 2.5rem; line-height: 1.7; }
.translation-body blockquote { margin: 1.5rem 0; border-left: 3px solid var(--primary-color); padding: 1rem 1.5rem; background: var(--tint); }
.translation-notice { max-width: 880px; padding: 1.25rem; background: var(--tint); font-size: .82rem; margin-top: 1rem; }
.translation-notice h2 { font-size: .9rem; }
.translation-notice p:last-child { margin: 0; }
.original-links { font-size: .8rem; margin-bottom: 1.5rem; }
.original-links a { margin-right: 1rem; }
.article-body table { border-collapse: collapse; width: 100%; margin: 1.5rem 0 2rem; font-size: .9rem; }
.article-body caption { text-align: left; font-weight: 600; padding-bottom: .6rem; }
.article-body th, .article-body td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--rule); padding: .8rem; }
.article-body thead { background: var(--tint); }
.article-body th[scope="row"] { width: 30%; }
.map-figure { margin: 2rem 0; }
.map-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--rule); }
.map-figure figcaption { font-size: .78rem; color: var(--muted); line-height: 1.8; margin-top: .7rem; }
.figure-note { padding: 1.25rem; background: var(--tint); margin: 2rem 0; }
.next-reading li { margin-bottom: .8rem; }
.sources li, .translation-notice, .original-links { overflow-wrap: anywhere; }
@media (max-width: 640px) {
 .translation-body { font-size: 1rem; padding-top: 0; }
 .article-body th, .article-body td { padding: .55rem; }
 .figure-note { padding: 1rem; }
 .figure-note .cta-link { white-space: normal; }
}